Original wrappers and self-wrappers, opened in as new condition. No. 3268 - From the Proceedings of the United States National Museum Vol. 100, pp. 411-538, figs. 46-50, pls. 10-12. Together with 'A Further Contribution to the Ornithology of Northeastern Venezuela' Vol 104, No. 3345, pp. 463-524, 1955. Includes a complete list of the avifauna recorded from the region.